Sound-reproducer.



m 863,174. PATENTED AUG. 13, 1907. A.HAUG.

SOUND RBPRODUGER.

APPLICATION FILED AUG. 8, 1905.

five/mica @513 S cko cum W a 5g 1 UNITED snags PATENT OFFICE.

ANDREW HAUG, OF NEW YORK, N. 'Y., ASSIGNOR TO UNIVERSAL TALKING MACHINE MANUFACTURING COMPANY, A CORPORATION OF NEW YORK.

SOUND-REPRODUGER.

Specification of Letters Patent.

Patented Aug. 13, 1907.

To all lvhom itmay concern:

Be it known that 1, ANDREW HAUG, residing at New York, in the county and State of New York, have in vented certain new and useful Improvements in Sound-Reproducers, of which the following is a specification.

My invention relates generally to talking machines and particularly to the construction of the sound box or reproducer used in connection therewith.

An important feature of the invention consists in providing for assembling the various parts of .the reproducer from the front of the casing and in so simplifying the construction, as to enable the average user to remove parts, make any necessary adjustment or repair and reassemble the same in a ready and convenient manner without requiring the aid of a skilled workman.

A reproducer constructed in accordance 'with my invention is illustrated in the accompanying drawings. I wish it understood, however, that I do not limit myself to the exact form or arrangement of parts shown, as various changes maybe made therein without departing from the spirit and scope of my invention.

In the drawingsFigure l is a sectional view of the reproducer. Fig. 2 is a similar view, taken at right angles to the plane of Fig. 1.. Fig. 3 is a detail plan view of the split spring ring which locks the diaphragm in the casing, and Fig. 4 is a sectional view thereof.

Referring now to the drawings, 1 represents a sectional casing of the reproducer or sound box, one member of which is recessed to provide a cylindrical chamber 2 therein and leading outward from the same, there is the usual tubular extension 3, for connection with the horn. a

A diaphragm 4, mounted in the chamber 2, is held between washers or gaskets 5, 5, preferablyof felt, the

- peculiar cushioning effect of which is, such as to cause the ordinary mica diaphragm to reproduce with marked elearness and greatly improved tone quality, as compared to the results obtained by the use of rubber. The employment of felt gives rise to many other important advantages. It is comparatively inexpensive, is readily obtained in any quantity desired, may be kept in stock indefinitely without deteriorating and is durable and highly effective in use. I

It will be observed, that the wall of the chamber 2 is given a slight taper, being somewhat larger at the bottom than at the top and fitted to telescope therein, there is a ring 6, forming the removable'section or member of the casing. The ring 6 is split at 7, and provided with a peripheral groove 8, or ,otherwise formed to give it requisite spring action to interlock with the member 1. The ring is given a taper similar to that of the wall of chamber 2 and is provided at the top with an outerflange '9, which seats against the member 1 and an inner flange 10, for a tool hold, when the ring is to be removed. The lower edge of the ring is reduced to a V, in cross section and rests upon the diaphragm or upon the felt gasket, when one is used upon the outer side thereof. The readiness and convenience with which the ring may be sprung into position or removed from the casing, will be at once apparent.

The construction and arrangement of the stylus arm 11, stylus 12, and spring locking device 13 cooperating therewith, are fully described in detail in my pending application filed August 8,1905, and serially numbered 272,450 and I will therefore give but a general description herein of the same.

As shown inFig. 2, the stylus arm 11, is pivotally mounted between the cone points of two screws '14, 14, and-is connected at one end with the diaphragm in the usual manner. At the opposite end, the arm is socketedto receive the stylus or needle 12, which is detachably held therein by a friction device in the form of a spring 13, provided with a V-opening (not shown) through which the needle projects. The removal of the needle is effected by simply depressing the spring and to insert a needle, the spring is similarly depressed to bring the V-opening thereof in line with the socket in the stylus arm. It will be understood that the present invention is not limited to the use of a particular form of stylus arm, locking device for the stylus etc., that shown being employed herein merely for purposes of completing an operative illustration.

Having therefore described my invention, I claim,

1. A casing for a sound reproducer comprising a member recessed to provide a seat for a diaphragm, and a coacting resilient member having an exterior bearing relative to the recess and an annular taper bearing interiorly thereof.

2. A casing for a sound reproducer comprising a member recessed to provide a seat for a diaphragm, and a coacting resilient member having an annular taper bearing interiorly of the recess and a stop flange 'exteriorly thereof.

3. A casing for a sound reproducer comprising a member recessed-to provide a seat for a diaphragm, and a coacting resilient member having a bearing interiorly and exteriorly of the recess.

4. A casing for a sound reproducer comprising a member recessed to provide a seat for a diaphragm, and a coacting resilient member having an annular bearing interiorly and exteriorly of the recess.

5. A casing for'a sound reproducer comprising a mem- 'split spring ring arranged in the recess in telescoping re 'lation and provided exteriorly thereof with an annular 7. (.NNIIUJ. for n mum] rvpi'nduuur vmuprining n mumlwl' Wuvm-wd to IHUVMI' u HUM for n dinphl'num. um] n Nlliil spring ring nrrumrml In Hit I'm-(NH in l'vivm'opilm' 1'0 iuiiou um] pi'ovidwi oxiorioriy i'iwl'voi' \vllh oppnsiioly d1 pmwd nmlulnr Ilium-N.

h. Hound i'( ]Il'H(l\l('(l' vompriniug' two iuumhul's urrung'ud in tolusvoping roiution. ouo momiwr huing x011- muintniniug by its own rusiilvncv roiufivv in the other and having: 11 honriug intorioriy and vxtoriorly thereof. :1 diaphragm yielding-1y hold lwtwevn tho momiwrs, and a stylus opurutiveiy connected to 'lhu diaphragm.

i). A sound roproducor comprising a recessed mumbvr, a diaphragm mounted in tho rocoss, a second member suit- I i i i i 

